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Comparing JSON-XS/XS.xs (file contents):
Revision 1.1 by root, Thu Mar 22 16:40:16 2007 UTC vs.
Revision 1.11 by root, Sat Mar 24 19:42:14 2007 UTC

… …
10#define F_UTF8 0x00000002 10#define F_UTF8 0x00000002
11#define F_INDENT 0x00000004 11#define F_INDENT 0x00000004
12#define F_CANONICAL 0x00000008 12#define F_CANONICAL 0x00000008
13#define F_SPACE_BEFORE 0x00000010 13#define F_SPACE_BEFORE 0x00000010
14#define F_SPACE_AFTER 0x00000020 14#define F_SPACE_AFTER 0x00000020
15#define F_ALLOW_NONREF 0x00000080
15#define F_JSON_RPC 0x00000040 16#define F_SHRINK 0x00000100
16 17
18#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER
17#define F_DEFAULT 0 19#define F_DEFAULT 0
18 20
19#define INIT_SIZE 32 // initial scalar size to be allocated 21#define INIT_SIZE 32 // initial scalar size to be allocated
20 22
21#define SB do { 23#define SB do {
… …
38// structure used for decoding JSON 40// structure used for decoding JSON
39typedef struct 41typedef struct
40{ 42{
41 char *cur; 43 char *cur;
42 char *end; 44 char *end;
43 char *err; 45 const char *err;
44 UV flags; 46 UV flags;
45} dec_t; 47} dec_t;
46 48
47static UV * 49static UV *
48SvJSON (SV *sv) 50SvJSON (SV *sv)
49{ 51{
50 if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash)) 52 if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
51 croak ("object is not of type JSON::XS"); 53 croak ("object is not of type JSON::XS");
52 54
53 return &SvUVX (SvRV (sv)); 55 return &SvUVX (SvRV (sv));
56}
57
58static void
59shrink (SV *sv)
60{
61 sv_utf8_downgrade (sv, 1);
62#ifdef SvPV_shrink_to_cur
63 SvPV_shrink_to_cur (sv);
64#endif
54} 65}
55 66
56///////////////////////////////////////////////////////////////////////////// 67/////////////////////////////////////////////////////////////////////////////
57 68
58static void 69static void
… …
61 if (enc->cur + len >= enc->end) 72 if (enc->cur + len >= enc->end)
62 { 73 {
63 STRLEN cur = enc->cur - SvPVX (enc->sv); 74 STRLEN cur = enc->cur - SvPVX (enc->sv);
64 SvGROW (enc->sv, cur + len + 1); 75 SvGROW (enc->sv, cur + len + 1);
65 enc->cur = SvPVX (enc->sv) + cur; 76 enc->cur = SvPVX (enc->sv) + cur;
66 enc->end = SvEND (enc->sv); 77 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv);
67 } 78 }
68} 79}
69 80
70static void 81static void
71encode_ch (enc_t *enc, char ch) 82encode_ch (enc_t *enc, char ch)
… …
77static void 88static void
78encode_str (enc_t *enc, char *str, STRLEN len, int is_utf8) 89encode_str (enc_t *enc, char *str, STRLEN len, int is_utf8)
79{ 90{
80 char *end = str + len; 91 char *end = str + len;
81 92
93 need (enc, len);
94
82 while (str < end) 95 while (str < end)
83 { 96 {
84 unsigned char ch = *(unsigned char *)str; 97 unsigned char ch = *(unsigned char *)str;
98
85 if (ch >= 0x20 && ch < 0x80) // most common case 99 if (ch >= 0x20 && ch < 0x80) // most common case
86 { 100 {
101 if (ch == '"') // but with slow exceptions
102 {
103 need (enc, len += 1);
104 *enc->cur++ = '\\';
105 *enc->cur++ = '"';
106 }
107 else if (ch == '\\')
108 {
109 need (enc, len += 1);
110 *enc->cur++ = '\\';
111 *enc->cur++ = '\\';
112 }
113 else
87 *enc->cur++ = ch; 114 *enc->cur++ = ch;
115
88 str++; 116 ++str;
89 } 117 }
90 else 118 else
91 { 119 {
92 STRLEN clen; 120 switch (ch)
93 UV uch;
94
95 if (is_utf8)
96 { 121 {
97 uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY); 122 case '\010': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'b'; ++str; break;
98 if (clen < 0) 123 case '\011': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 't'; ++str; break;
99 croak ("malformed UTF-8 character in string, cannot convert to JSON"); 124 case '\012': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'n'; ++str; break;
100 } 125 case '\014': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'f'; ++str; break;
101 else 126 case '\015': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'r'; ++str; break;
102 {
103 uch = ch;
104 clen = 1;
105 }
106 127
107 need (enc, len += 6); 128 default:
108
109 if (uch < 0xa0 || enc->flags & F_ASCII)
110 {
111 if (uch > 0xFFFFUL)
112 { 129 {
130 STRLEN clen;
131 UV uch;
132
133 if (is_utf8)
134 {
135 uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);
136 if (clen == (STRLEN)-1)
137 croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);
138 }
139 else
140 {
141 uch = ch;
113 len += 6; 142 clen = 1;
143 }
144
145 if (uch > 0x10FFFFUL)
146 croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
147
148 if (uch < 0x80 || enc->flags & F_ASCII)
149 {
150 if (uch > 0xFFFFUL)
151 {
114 need (enc, len += 6); 152 need (enc, len += 11);
115 sprintf (enc->cur, "\\u%04x\\u%04x", 153 sprintf (enc->cur, "\\u%04x\\u%04x",
116 (uch - 0x10000) / 0x400 + 0xD800, 154 (int)((uch - 0x10000) / 0x400 + 0xD800),
117 (uch - 0x10000) % 0x400 + 0xDC00); 155 (int)((uch - 0x10000) % 0x400 + 0xDC00));
118 enc->cur += 12; 156 enc->cur += 12;
157 }
158 else
159 {
160 static char hexdigit [16] = "0123456789abcdef";
161 need (enc, len += 5);
162 *enc->cur++ = '\\';
163 *enc->cur++ = 'u';
164 *enc->cur++ = hexdigit [ uch >> 12 ];
165 *enc->cur++ = hexdigit [(uch >> 8) & 15];
166 *enc->cur++ = hexdigit [(uch >> 4) & 15];
167 *enc->cur++ = hexdigit [(uch >> 0) & 15];
168 }
169
170 str += clen;
119 } 171 }
172 else if (is_utf8)
173 {
174 need (enc, len += clen);
175 do
176 {
177 *enc->cur++ = *str++;
178 }
179 while (--clen);
180 }
120 else 181 else
121 { 182 {
122 sprintf (enc->cur, "\\u%04x", uch); 183 need (enc, len += 10); // never more than 11 bytes needed
123 enc->cur += 6; 184 enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
185 ++str;
186 }
124 } 187 }
125 } 188 }
126 else if (is_utf8)
127 {
128 memcpy (enc->cur, str, clen);
129 enc->cur += clen;
130 }
131 else
132 enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
133
134 str += clen;
135 } 189 }
136 190
137 --len; 191 --len;
138 } 192 }
139} 193}
… …
146 for (i_ = enc->indent * 3; i_--; )\ 200 for (i_ = enc->indent * 3; i_--; )\
147 encode_ch (enc, ' '); \ 201 encode_ch (enc, ' '); \
148 } \ 202 } \
149 SE 203 SE
150 204
151#define SPACE SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, ' '); } SE 205#define SPACE SB need (enc, 1); encode_ch (enc, ' '); SE
152#define NL SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, '\n'); } SE 206#define NL SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, '\n'); } SE
153#define COMMA SB \ 207#define COMMA SB \
154 encode_ch (enc, ','); \ 208 encode_ch (enc, ','); \
155 if (enc->flags & F_INDENT) \ 209 if (enc->flags & F_INDENT) \
156 NL; \ 210 NL; \
… …
190 244
191 if (HeKLEN (he) == HEf_SVKEY) 245 if (HeKLEN (he) == HEf_SVKEY)
192 { 246 {
193 SV *sv = HeSVKEY (he); 247 SV *sv = HeSVKEY (he);
194 STRLEN len; 248 STRLEN len;
249 char *str;
250
251 SvGETMAGIC (sv);
195 char *str = SvPV (sv, len); 252 str = SvPV (sv, len);
196 253
197 encode_str (enc, str, len, SvUTF8 (sv)); 254 encode_str (enc, str, len, SvUTF8 (sv));
198 } 255 }
199 else 256 else
200 encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); 257 encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
… …
217 HE *b = *(HE **)b_; 274 HE *b = *(HE **)b_;
218 275
219 STRLEN la = HeKLEN (a); 276 STRLEN la = HeKLEN (a);
220 STRLEN lb = HeKLEN (b); 277 STRLEN lb = HeKLEN (b);
221 278
222 if (!(cmp == memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) 279 if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))
223 cmp = la < lb ? -1 : la == lb ? 0 : 1; 280 cmp = la - lb;
224 281
225 return cmp; 282 return cmp;
226} 283}
227 284
228// compare hash entries, used when some keys are sv's or utf-x 285// compare hash entries, used when some keys are sv's or utf-x
… …
262 319
263 if (fast) 320 if (fast)
264 qsort (hes, count, sizeof (HE *), he_cmp_fast); 321 qsort (hes, count, sizeof (HE *), he_cmp_fast);
265 else 322 else
266 { 323 {
267 // hack to disable "use bytes" 324 // hack to forcefully disable "use bytes"
268 COP *oldcop = PL_curcop, cop; 325 COP cop = *PL_curcop;
269 cop.op_private = 0; 326 cop.op_private = 0;
327
328 ENTER;
329 SAVETMPS;
330
331 SAVEVPTR (PL_curcop);
270 PL_curcop = &cop; 332 PL_curcop = &cop;
271 333
272 SAVETMPS;
273 qsort (hes, count, sizeof (HE *), he_cmp_slow); 334 qsort (hes, count, sizeof (HE *), he_cmp_slow);
335
274 FREETMPS; 336 FREETMPS;
275 337 LEAVE;
276 PL_curcop = oldcop;
277 } 338 }
278 339
279 for (i = 0; i < count; ++i) 340 for (i = 0; i < count; ++i)
280 { 341 {
281 INDENT; 342 INDENT;
… …
311} 372}
312 373
313static void 374static void
314encode_sv (enc_t *enc, SV *sv) 375encode_sv (enc_t *enc, SV *sv)
315{ 376{
377 SvGETMAGIC (sv);
378
316 if (SvPOKp (sv)) 379 if (SvPOKp (sv))
317 { 380 {
318 STRLEN len; 381 STRLEN len;
319 char *str = SvPV (sv, len); 382 char *str = SvPV (sv, len);
320 encode_ch (enc, '"'); 383 encode_ch (enc, '"');
… …
335 ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv)) 398 ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv))
336 : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv)); 399 : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv));
337 } 400 }
338 else if (SvROK (sv)) 401 else if (SvROK (sv))
339 { 402 {
403 SV *rv = SvRV (sv);
404
340 if (!--enc->max_recurse) 405 if (!--enc->max_recurse)
341 croak ("data structure too deep (hit recursion limit)"); 406 croak ("data structure too deep (hit recursion limit)");
342 407
343 sv = SvRV (sv);
344
345 switch (SvTYPE (sv)) 408 switch (SvTYPE (rv))
346 { 409 {
347 case SVt_PVAV: encode_av (enc, (AV *)sv); break; 410 case SVt_PVAV: encode_av (enc, (AV *)rv); break;
348 case SVt_PVHV: encode_hv (enc, (HV *)sv); break; 411 case SVt_PVHV: encode_hv (enc, (HV *)rv); break;
349 412
350 default: 413 default:
351 croak ("JSON can only represent references to arrays or hashes"); 414 croak ("encountered %s, but JSON can only represent references to arrays or hashes",
415 SvPV_nolen (sv));
352 } 416 }
353 } 417 }
354 else if (!SvOK (sv)) 418 else if (!SvOK (sv))
355 encode_str (enc, "null", 4, 0); 419 encode_str (enc, "null", 4, 0);
356 else 420 else
357 croak ("encountered perl type that JSON cannot handle"); 421 croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
422 SvPV_nolen (sv), SvFLAGS (sv));
358} 423}
359 424
360static SV * 425static SV *
361encode_json (SV *scalar, UV flags) 426encode_json (SV *scalar, UV flags)
362{ 427{
428 if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))
429 croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
430
363 enc_t enc; 431 enc_t enc;
364 enc.flags = flags; 432 enc.flags = flags;
365 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); 433 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
366 enc.cur = SvPVX (enc.sv); 434 enc.cur = SvPVX (enc.sv);
367 enc.end = SvEND (enc.sv); 435 enc.end = SvEND (enc.sv);
… …
373 441
374 if (!(flags & (F_ASCII | F_UTF8))) 442 if (!(flags & (F_ASCII | F_UTF8)))
375 SvUTF8_on (enc.sv); 443 SvUTF8_on (enc.sv);
376 444
377 SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); 445 SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
446
447 if (enc.flags & F_SHRINK)
448 shrink (enc.sv);
449
378 return enc.sv; 450 return enc.sv;
379} 451}
380 452
381///////////////////////////////////////////////////////////////////////////// 453/////////////////////////////////////////////////////////////////////////////
382 454
… …
397 ++dec->cur; \ 469 ++dec->cur; \
398 SE 470 SE
399 471
400static SV *decode_sv (dec_t *dec); 472static SV *decode_sv (dec_t *dec);
401 473
402#define APPEND_CH(ch) SB \
403 SvGROW (sv, cur + 1 + 1); \
404 SvPVX (sv)[cur++] = (ch); \
405 SE
406
407static signed char decode_hexdigit[256]; 474static signed char decode_hexdigit[256];
408 475
409static UV 476static UV
410decode_4hex (dec_t *dec) 477decode_4hex (dec_t *dec)
411{ 478{
… …
429 496
430fail: 497fail:
431 return (UV)-1; 498 return (UV)-1;
432} 499}
433 500
501#define APPEND_GROW(n) SB \
502 if (cur + (n) >= end) \
503 { \
504 STRLEN ofs = cur - SvPVX (sv); \
505 SvGROW (sv, ofs + (n) + 1); \
506 cur = SvPVX (sv) + ofs; \
507 end = SvEND (sv); \
508 } \
509 SE
510
511#define APPEND_CH(ch) SB \
512 APPEND_GROW (1); \
513 *cur++ = (ch); \
514 SE
515
434static SV * 516static SV *
435decode_str (dec_t *dec) 517decode_str (dec_t *dec)
436{ 518{
437 SV *sv = NEWSV (0,2); 519 SV *sv = NEWSV (0,2);
438 STRLEN cur = 0;
439 int utf8 = 0; 520 int utf8 = 0;
521 char *cur = SvPVX (sv);
522 char *end = SvEND (sv);
440 523
441 for (;;) 524 for (;;)
442 { 525 {
443 unsigned char ch = *(unsigned char *)dec->cur; 526 unsigned char ch = *(unsigned char *)dec->cur;
444 527
… …
469 552
470 // possibly a surrogate pair 553 // possibly a surrogate pair
471 if (hi >= 0xd800 && hi < 0xdc00) 554 if (hi >= 0xd800 && hi < 0xdc00)
472 { 555 {
473 if (dec->cur [0] != '\\' || dec->cur [1] != 'u') 556 if (dec->cur [0] != '\\' || dec->cur [1] != 'u')
474 ERR ("illegal surrogate character"); 557 ERR ("missing low surrogate character in surrogate pair");
475 558
476 dec->cur += 2; 559 dec->cur += 2;
477 560
478 lo = decode_4hex (dec); 561 lo = decode_4hex (dec);
479 if (lo == (UV)-1) 562 if (lo == (UV)-1)
… …
482 if (lo < 0xdc00 || lo >= 0xe000) 565 if (lo < 0xdc00 || lo >= 0xe000)
483 ERR ("surrogate pair expected"); 566 ERR ("surrogate pair expected");
484 567
485 hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000; 568 hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000;
486 } 569 }
487 else if (lo >= 0xdc00 && lo < 0xe000) 570 else if (hi >= 0xdc00 && hi < 0xe000)
488 ERR ("illegal surrogate character"); 571 ERR ("missing high surrogate character in surrogate pair");
489 572
490 if (hi >= 0x80) 573 if (hi >= 0x80)
491 { 574 {
492 utf8 = 1; 575 utf8 = 1;
493 576
494 SvGROW (sv, cur + 4 + 1); // at most 4 bytes for 21 bits 577 APPEND_GROW (4); // at most 4 bytes for 21 bits
495 cur = (char *)uvuni_to_utf8_flags (SvPVX (sv) + cur, hi, 0) - SvPVX (sv); 578 cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);
496 } 579 }
497 else 580 else
498 APPEND_CH (hi); 581 APPEND_CH (hi);
499 } 582 }
500 break; 583 break;
584
585 default:
586 --dec->cur;
587 ERR ("illegal backslash escape sequence in string");
501 } 588 }
502 } 589 }
503 else if (ch >= 0x20 && ch <= 0x7f) 590 else if (ch >= 0x20 && ch <= 0x7f)
504 APPEND_CH (*dec->cur++); 591 APPEND_CH (*dec->cur++);
505 else if (ch >= 0x80) 592 else if (ch >= 0x80)
506 { 593 {
507 STRLEN clen; 594 STRLEN clen;
508 UV uch = utf8n_to_uvuni (dec->cur, dec->end - dec->cur, &clen, UTF8_CHECK_ONLY); 595 UV uch = utf8n_to_uvuni (dec->cur, dec->end - dec->cur, &clen, UTF8_CHECK_ONLY);
509 if (clen < 0) 596 if (clen == (STRLEN)-1)
510 ERR ("malformed UTF-8 character in string, cannot convert to JSON"); 597 ERR ("malformed UTF-8 character in JSON string");
511 598
512 SvGROW (sv, cur + clen + 1); // at most 4 bytes for 21 bits 599 APPEND_GROW (clen);
513 memcpy (SvPVX (sv) + cur, dec->cur, clen); 600 do
514 dec->cur += clen; 601 {
602 *cur++ = *dec->cur++;
603 }
604 while (--clen);
605
606 utf8 = 1;
515 } 607 }
608 else if (dec->cur == dec->end)
609 ERR ("unexpected end of string while parsing json string");
516 else 610 else
517 ERR ("invalid character encountered"); 611 ERR ("invalid character encountered");
518 } 612 }
519 613
520 ++dec->cur; 614 ++dec->cur;
521 615
616 SvCUR_set (sv, cur - SvPVX (sv));
617
522 SvPOK_only (sv); 618 SvPOK_only (sv);
523
524 SvCUR_set (sv, cur);
525 *SvEND (sv) = 0; 619 *SvEND (sv) = 0;
526 620
527 if (utf8) 621 if (utf8)
528 SvUTF8_on (sv); 622 SvUTF8_on (sv);
623
624 if (dec->flags & F_SHRINK)
625 shrink (sv);
529 626
530 return sv; 627 return sv;
531 628
532fail: 629fail:
533 SvREFCNT_dec (sv); 630 SvREFCNT_dec (sv);
… …
548 { 645 {
549 ++dec->cur; 646 ++dec->cur;
550 if (*dec->cur >= '0' && *dec->cur <= '9') 647 if (*dec->cur >= '0' && *dec->cur <= '9')
551 ERR ("malformed number (leading zero must not be followed by another digit)"); 648 ERR ("malformed number (leading zero must not be followed by another digit)");
552 } 649 }
553 650 else if (*dec->cur < '0' || *dec->cur > '9')
554 // int 651 ERR ("malformed number (no digits after initial minus)");
652 else
653 do
654 {
655 ++dec->cur;
656 }
555 while (*dec->cur >= '0' && *dec->cur <= '9') 657 while (*dec->cur >= '0' && *dec->cur <= '9');
556 ++dec->cur;
557 658
558 // [frac] 659 // [frac]
559 if (*dec->cur == '.') 660 if (*dec->cur == '.')
560 { 661 {
561 is_nv = 1; 662 ++dec->cur;
663
664 if (*dec->cur < '0' || *dec->cur > '9')
665 ERR ("malformed number (no digits after decimal point)");
562 666
563 do 667 do
564 { 668 {
565 ++dec->cur; 669 ++dec->cur;
566 } 670 }
567 while (*dec->cur >= '0' && *dec->cur <= '9'); 671 while (*dec->cur >= '0' && *dec->cur <= '9');
672
673 is_nv = 1;
568 } 674 }
569 675
570 // [exp] 676 // [exp]
571 if (*dec->cur == 'e' || *dec->cur == 'E') 677 if (*dec->cur == 'e' || *dec->cur == 'E')
572 { 678 {
573 is_nv = 1;
574
575 ++dec->cur; 679 ++dec->cur;
680
576 if (*dec->cur == '-' || *dec->cur == '+') 681 if (*dec->cur == '-' || *dec->cur == '+')
577 ++dec->cur; 682 ++dec->cur;
578 683
684 if (*dec->cur < '0' || *dec->cur > '9')
685 ERR ("malformed number (no digits after exp sign)");
686
687 do
688 {
689 ++dec->cur;
690 }
579 while (*dec->cur >= '0' && *dec->cur <= '9') 691 while (*dec->cur >= '0' && *dec->cur <= '9');
580 ++dec->cur; 692
693 is_nv = 1;
581 } 694 }
582 695
583 if (!is_nv) 696 if (!is_nv)
584 { 697 {
585 UV uv; 698 UV uv;
… …
603static SV * 716static SV *
604decode_av (dec_t *dec) 717decode_av (dec_t *dec)
605{ 718{
606 AV *av = newAV (); 719 AV *av = newAV ();
607 720
721 WS;
722 if (*dec->cur == ']')
723 ++dec->cur;
724 else
608 for (;;) 725 for (;;)
609 { 726 {
610 SV *value; 727 SV *value;
611 728
612 value = decode_sv (dec); 729 value = decode_sv (dec);
613 if (!value) 730 if (!value)
614 goto fail; 731 goto fail;
615 732
616 av_push (av, value); 733 av_push (av, value);
617 734
618 WS; 735 WS;
619 736
620 if (*dec->cur == ']') 737 if (*dec->cur == ']')
621 { 738 {
622 ++dec->cur; 739 ++dec->cur;
623 break; 740 break;
741 }
624 } 742
625
626 if (*dec->cur != ',') 743 if (*dec->cur != ',')
627 ERR (", or ] expected while parsing array"); 744 ERR (", or ] expected while parsing array");
628 745
629 ++dec->cur; 746 ++dec->cur;
630 } 747 }
631 748
632 return newRV_noinc ((SV *)av); 749 return newRV_noinc ((SV *)av);
633 750
634fail: 751fail:
635 SvREFCNT_dec (av); 752 SvREFCNT_dec (av);
… …
639static SV * 756static SV *
640decode_hv (dec_t *dec) 757decode_hv (dec_t *dec)
641{ 758{
642 HV *hv = newHV (); 759 HV *hv = newHV ();
643 760
761 WS;
762 if (*dec->cur == '}')
763 ++dec->cur;
764 else
644 for (;;) 765 for (;;)
645 { 766 {
646 SV *key, *value; 767 SV *key, *value;
647 768
648 WS; EXPECT_CH ('"'); 769 WS; EXPECT_CH ('"');
649 770
650 key = decode_str (dec); 771 key = decode_str (dec);
651 if (!key) 772 if (!key)
652 goto fail;
653
654 WS; EXPECT_CH (':');
655
656 value = decode_sv (dec);
657 if (!value)
658 {
659 SvREFCNT_dec (key);
660 goto fail; 773 goto fail;
774
775 WS; EXPECT_CH (':');
776
777 value = decode_sv (dec);
778 if (!value)
779 {
780 SvREFCNT_dec (key);
781 goto fail;
661 } 782 }
662 783
663 //TODO: optimise 784 //TODO: optimise
664 hv_store_ent (hv, key, value, 0); 785 hv_store_ent (hv, key, value, 0);
665 786
666 WS; 787 WS;
667 788
668 if (*dec->cur == '}') 789 if (*dec->cur == '}')
669 { 790 {
670 ++dec->cur; 791 ++dec->cur;
671 break; 792 break;
672 } 793 }
673 794
674 if (*dec->cur != ',') 795 if (*dec->cur != ',')
675 ERR (", or } expected while parsing object/hash"); 796 ERR (", or } expected while parsing object/hash");
676 797
677 ++dec->cur; 798 ++dec->cur;
678 } 799 }
679 800
680 return newRV_noinc ((SV *)hv); 801 return newRV_noinc ((SV *)hv);
681 802
682fail: 803fail:
683 SvREFCNT_dec (hv); 804 SvREFCNT_dec (hv);
… …
723 844
724 case 'n': 845 case 'n':
725 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) 846 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
726 { 847 {
727 dec->cur += 4; 848 dec->cur += 4;
728 return newSViv (1); 849 return newSVsv (&PL_sv_undef);
729 } 850 }
730 else 851 else
731 ERR ("'null' expected"); 852 ERR ("'null' expected");
732 853
733 break; 854 break;
734 855
735 default: 856 default:
736 ERR ("malformed json string"); 857 ERR ("malformed json string, neither array, object, number, string or atom");
737 break; 858 break;
738 } 859 }
739 860
740fail: 861fail:
741 return 0; 862 return 0;
… …
744static SV * 865static SV *
745decode_json (SV *string, UV flags) 866decode_json (SV *string, UV flags)
746{ 867{
747 SV *sv; 868 SV *sv;
748 869
749 if (!(flags & F_UTF8)) 870 if (flags & F_UTF8)
871 sv_utf8_downgrade (string, 0);
872 else
750 sv_utf8_upgrade (string); 873 sv_utf8_upgrade (string);
751 874
752 SvGROW (string, SvCUR (string) + 1); // should basically be a NOP 875 SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
753 876
754 dec_t dec; 877 dec_t dec;
755 dec.flags = flags; 878 dec.flags = flags;
756 dec.cur = SvPVX (string); 879 dec.cur = SvPVX (string);
757 dec.end = SvEND (string); 880 dec.end = SvEND (string);
758 dec.err = 0; 881 dec.err = 0;
759 882
760 *dec.end = 1; // invalid anywhere
761 sv = decode_sv (&dec); 883 sv = decode_sv (&dec);
762 *dec.end = 0;
763 884
764 if (!sv) 885 if (!sv)
765 { 886 {
887 IV offset = dec.flags & F_UTF8
888 ? dec.cur - SvPVX (string)
766 IV offset = utf8_distance (dec.cur, SvPVX (string)); 889 : utf8_distance (dec.cur, SvPVX (string));
767 SV *uni = sv_newmortal (); 890 SV *uni = sv_newmortal ();
768 891
892 // horrible hack to silence warning inside pv_uni_display
893 COP cop = *PL_curcop;
894 cop.cop_warnings = pWARN_NONE;
895 ENTER;
896 SAVEVPTR (PL_curcop);
897 PL_curcop = &cop;
769 pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); 898 pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
899 LEAVE;
900
770 croak ("%s, at character %d (%s)", 901 croak ("%s, at character offset %d (%s)",
771 dec.err, 902 dec.err,
772 (int)offset, 903 (int)offset,
773 dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); 904 dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
774 } 905 }
775 906
776 sv_dump (sv);//D
777 return sv_2mortal (sv); 907 sv = sv_2mortal (sv);
908
909 if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))
910 croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
911
912 return sv;
778} 913}
779 914
780MODULE = JSON::XS PACKAGE = JSON::XS 915MODULE = JSON::XS PACKAGE = JSON::XS
781 916
782BOOT: 917BOOT:
… …
785 920
786 memset (decode_hexdigit, 0xff, 256); 921 memset (decode_hexdigit, 0xff, 256);
787 for (i = 10; i--; ) 922 for (i = 10; i--; )
788 decode_hexdigit ['0' + i] = i; 923 decode_hexdigit ['0' + i] = i;
789 924
790 for (i = 6; --i; ) 925 for (i = 7; i--; )
791 { 926 {
792 decode_hexdigit ['a' + i] = 10 + i; 927 decode_hexdigit ['a' + i] = 10 + i;
793 decode_hexdigit ['A' + i] = 10 + i; 928 decode_hexdigit ['A' + i] = 10 + i;
794 } 929 }
795 930
796 json_stash = gv_stashpv ("JSON::XS", 1); 931 json_stash = gv_stashpv ("JSON::XS", 1);
797} 932}
933
934PROTOTYPES: DISABLE
798 935
799SV *new (char *dummy) 936SV *new (char *dummy)
800 CODE: 937 CODE:
801 RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash); 938 RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);
802 OUTPUT: 939 OUTPUT:
803 RETVAL 940 RETVAL
804 941
805SV *ascii (SV *self, int enable) 942SV *ascii (SV *self, int enable = 1)
806 ALIAS: 943 ALIAS:
807 ascii = F_ASCII 944 ascii = F_ASCII
808 utf8 = F_UTF8 945 utf8 = F_UTF8
809 indent = F_INDENT 946 indent = F_INDENT
810 canonical = F_CANONICAL 947 canonical = F_CANONICAL
811 space_before = F_SPACE_BEFORE 948 space_before = F_SPACE_BEFORE
812 space_after = F_SPACE_AFTER 949 space_after = F_SPACE_AFTER
813 json_rpc = F_JSON_RPC 950 pretty = F_PRETTY
951 allow_nonref = F_ALLOW_NONREF
952 shrink = F_SHRINK
814 CODE: 953 CODE:
815{ 954{
816 UV *uv = SvJSON (self); 955 UV *uv = SvJSON (self);
817 if (enable) 956 if (enable)
818 *uv |= ix; 957 *uv |= ix;
… …
826 965
827void encode (SV *self, SV *scalar) 966void encode (SV *self, SV *scalar)
828 PPCODE: 967 PPCODE:
829 XPUSHs (encode_json (scalar, *SvJSON (self))); 968 XPUSHs (encode_json (scalar, *SvJSON (self)));
830 969
831void decode (SV *self, SV *jsondata) 970void decode (SV *self, SV *jsonstr)
832 PPCODE: 971 PPCODE:
833 XPUSHs (decode_json (jsondata, *SvJSON (self))); 972 XPUSHs (decode_json (jsonstr, *SvJSON (self)));
834 973
974PROTOTYPES: ENABLE
975
976void to_json (SV *scalar)
977 PPCODE:
978 XPUSHs (encode_json (scalar, F_UTF8));
979
980void from_json (SV *jsonstr)
981 PPCODE:
982 XPUSHs (decode_json (jsonstr, F_UTF8));
983

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